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https://issues.apache.org/jira/browse/CLOUDSTACK-1668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13606741#comment-13606741
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Wei Zhou commented on CLOUDSTACK-1668:
--------------------------------------
patch for this issue on master : https://reviews.apache.org/r/10022/
> IP conflict in VPC tier
> -----------------------
>
> Key: CLOUDSTACK-1668
> URL: https://issues.apache.org/jira/browse/CLOUDSTACK-1668
> Project: CloudStack
> Issue Type: Bug
> Security Level: Public(Anyone can view this level - this is the
> default.)
> Affects Versions: 4.0.1, 4.1.0
> Reporter: Wei Zhou
> Assignee: Wei Zhou
> Priority: Critical
> Attachments: ipaddress=gatewayip.jpg
>
>
> The first instance in a VPC tier may have a same IP address to gateway of the
> tier.
> It is because the instance NIC is created before the gateway NIC.
> For example,
> mysql> select * from nics where network_id=240;
> +-----+--------------------------------------+-------------+-------------------+----------------+-----------------+----------------+---------+---------------+------------+------+----------+----------+--------------------------+--------------------------------------+-----------+---------------------+---------------+-------------+-------------+--------------+---------------------+---------+
> | id | uuid | instance_id | mac_address
> | ip4_address | netmask | gateway | ip_type |
> broadcast_uri | network_id | mode | state | strategy | reserver_name
> | reservation_id | device_id | update_time
> | isolation_uri | ip6_address | default_nic | vm_type | created
> | removed |
> +-----+--------------------------------------+-------------+-------------------+----------------+-----------------+----------------+---------+---------------+------------+------+----------+----------+--------------------------+--------------------------------------+-----------+---------------------+---------------+-------------+-------------+--------------+---------------------+---------+
> | 348 | 2c4fd128-c2f9-4862-a870-10b408282a08 | 182 |
> 02:00:7d:eb:00:01 | 192.168.101.52 | 255.255.255.240 | 192.168.101.60 | Ip4
> | vlan://610 | 240 | Dhcp | Reserved | Start |
> ExternalGuestNetworkGuru | 3f23d820-5b81-48bd-8c04-ec53d8a20f8d | 0 |
> 2013-03-13 21:36:11 | vlan://610 | NULL | 1 | User
> | 2013-03-13 20:36:04 | NULL |
> | 349 | 5c71231d-09a8-4ece-81a2-9458966e3e0b | 175 |
> 02:00:4e:d2:00:02 | 192.168.101.60 | 255.255.255.240 | 192.168.101.60 | Ip4
> | vlan://610 | 240 | Dhcp | Reserved | Start |
> ExternalGuestNetworkGuru | NULL | 3 |
> 2013-03-13 21:36:04 | vlan://610 | NULL | 0 |
> DomainRouter | 2013-03-13 20:36:04 | NULL |
> +-----+--------------------------------------+-------------+-------------------+----------------+-----------------+----------------+---------+---------------+------------+------+----------+----------+--------------------------+--------------------------------------+-----------+---------------------+---------------+-------------+-------------+--------------+---------------------+---------+
> 192.168.101.52 is the Guest IP.
> 192.168.101.60 is the Gateway IP.
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